Oooh wow ! This is so beautiful ! The atmosphere is amazing, and I really love the background with the clouds and the little stars ! And your characters looks really amazing, I especially love Red face !
hmmm I always have drawn much deer, its all about straight stick lines. If you can afford a book, I suggest " the art of animal drawing by Ken Hultgren" It has a lot of explaination about flowy lines in animals, and it shows a lot of deer drawings. Ken Hultgren was also bambi animator I learnt a lot from that book.